Cargo Features

freertos-sys has no features set by default.

[dependencies]
freertos-sys = { version = "0.1.3", features = ["dbgsym", "family-selected", "stm32h7x"] }

to select a supported device family, select one of the following features

dbgsym

enable debugging symbols for FreeRTOS itself

family-selected stm32f3x? stm32f4x? stm32f7x? stm32h7x?
stm32f3x stm32f4x stm32f7x stm32h7x = family-selected